MESON Chess Problem Database

Problem Display
PID: 97660 (8/2n1RpQ1/q4B1K/3pp1n1/5k1b/3pN2b/3P1N1P/3B4 w - - 0 1)

Cuppini, Alessandro

Problemas, 1976

8/2n1RpQ1/q4B1K/3pp1n1/5k1b/3pN2b/3P1N1P/3B4

#2

9 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qc4
      • 2.Bxe5#
    • 1...Qb5
      • 2.Bxe5#
    • 1...Qb7
      • 2.Bxe5#
    • 1...Qc8
      • 2.Bxe5#
    • 1...Qa2
      • 2.Bxe5#
    • 1...Qa3
      • 2.Bxe5#
    • 1...Qa4
      • 2.Bxe5#
    • 1...Qa5
      • 2.Bxe5#
    • 1...Qa7
      • 2.Bxe5#
    • 1...Qa8
      • 2.Bxe5#
    • 1...Bf5
      • 2.Sg2#
    • 1...Be6
      • 2.Bxe5#
    • 1...Bg3
      • 2.Qxg5#
    • 1...Se4
      • 2.Sxh3#
    • 1...Sge6
      • 2.Bxe5#
    • 1...Sce6
      • 2.Bxe5#
  • Tries
    • 1.Sxh3+?
      • 1...Sxh3
        • 2.Qg4#
      • 1...Ke4!
    • 1.Sg2+?
      • 1...Kf5
        • 2.Rxe5#
      • 1...Bxg2!
    • 1.Sxd5+?
      • 1...Kf5
        • 2.Rxe5#
      • 1...Sxd5!
  • Keys
    • 1.Qg6!
      • threat
        • 2.Bxe5#
      • 1...Qxf6
        • 2.Sxd3#
      • 1...Qa1
        • 2.Sxd3#
      • 1...Qd6
        • 2.Sxd3#
      • 1...Qe6
        • 2.Sxd3#
      • 1...Be6
        • 2.Sg2#
      • 1...Sf3
        • 2.Sxh3#
      • 1...Sge6
        • 2.Sxh3#
      • 1...Sce6
        • 2.Sxd5#
      • 1...e4
        • 2.Be5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 6
    • REMOVED MATES = 13
  • Sets
    • Q(h);N_PINB(F)::B(F),XP(f)
    • B(b);N_GUARD,SBLOCK::S(E)
    • B(b);N_PINB(F)::B(F),XP(f)
    • B(d);N_GUARD::QAB1(I),XS(g)
    • S(g);N_GUARD,SBLOCK::S(C),XB(b)
    • S(g);N_PINB(F)::B(F),XP(f)
    • S(i);N_PINB(F)::B(F),XP(f)
  • Tries
    • Try
      • S(C);CHECK,XB(b)
      • Vars
        • S(g);OGATE,XS(C)::QAR1(I)
      • Refutation
        • K(c);P-FLIGHT,P_SPINP(f)
    • Try
      • S(E);CHECK
      • Vars
        • K(c);P-FLIGHT::R1(H),XP(f)
      • Refutation
        • B(b);XS(E)
    • Try
      • S(E);CHECK,XP(e)
      • Vars
        • K(c);P-FLIGHT::R1(H),XP(f)
      • Refutation
        • S(i);XS(E)
  • Actual
    • Q(I);N_SPINB(F)
    • Threat
      • B(F),XP(f)
    • Vars
      • Q(h);N_GUARD,P_PINQ(I),XB(F)::S(C),XP(a)
      • Q(h);N_GUARD::S(C),XP(a)
      • B(b);N_GUARD::S(E)
      • S(g);N_GUARD::S(C),XB(b)
      • S(i);N_GUARD::S(E),XP(e)
      • P(f);::B(F)
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